The Nieuport-Delage NiD 30 was a French airliner which entered service in 1920. It was a reverse-stagger biplane design with an enclosed cabin that seated four passengers and an open cockpit for the pilot. Provision was also made for a wireless transmitter, receiver, and operator. Seven examples were operated by Compagnie générale transaérienne on its ParisâÂÂLondon route on twice-daily return services.
Following the loss of one of these machines in thick fog over the Channel on 27 April 1920, the remaining NiD-30s were fitted with an early audible guidance system. However, after a number of further accidents, these were withdrawn from service in February 1921.
A larger, six-passenger variant with longer overhung top wings was developed as the NiD 30T2 and displayed at the 1921 Salon de l'Aéronautique, but this was not produced.